21324314 has 12 divisors (see below), whose sum is σ = 35159082. Its totient is φ = 9692760.

The previous prime is 21324313. The next prime is 21324361. The reversal of 21324314 is 41342312.

It can be written as a sum of positive squares in only one way, i.e., 13579225 + 7745089 = 3685^2 + 2783^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (21324313) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 43817 + ... + 44300.

Almost surely, 2^21324314 is an apocalyptic number.

21324314 is a deficient number, since it is larger than the sum of its proper divisors (13834768).

21324314 is a wasteful number, since it uses less digits than its factorization.

21324314 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88141 (or 88130 counting only the distinct ones).

The product of its digits is 576, while the sum is 20.

The square root of 21324314 is about 4617.8256788233. The cubic root of 21324314 is about 277.3054188779.

Adding to 21324314 its reverse (41342312), we get a palindrome (62666626).

It can be divided in two parts, 2132 and 4314, that added together give a palindrome (6446).

The spelling of 21324314 in words is "twenty-one million, three hundred twenty-four thousand, three hundred fourteen".